The invention provides a hydraulic pneumatic suspension system for a vehicle, the system comprises a hydraulic subsystem comprising a hydraulic cylinder and a hydraulic accumulator connected with the hydraulic cylinder, the hydraulic cylinder being connected between a vehicle chassis and an axle, the hydraulic subsystem being used for lifting the axle; a pressure source, wherein an outlet of the pressure source is connected to the hydraulic subsystem through a first control valve, and an inlet of the pressure source is connected with a fluid outlet of a fluid box filled with first fluid; wherein the first control valve is connected with the fluid inlet of the fluid box through a backflow pipeline, and when the first control valve is communicated with the backflow pipeline, the first fluid flows back into the fluid box through the backflow pipeline. By sharing the fluid pump and the first fluid of a vehicle cooling system, the purpose of lifting the axle is achieved without using an air compressor, so that the vehicle space is compact and reliable, and the cost is reduced.

    本发明提供一种用于车辆的液压气动悬架系统,包括:液压子系统,包括液压缸和与液压缸连接的液压蓄能器,液压缸连接在车辆底盘和车轴之间,液压子系统用于举升车轴;压力源,压力源的出口通过一第一控制阀连接到液压子系统,且压力源的进口与一装有第一流体的流体箱的流体出口连接;其中,第一控制阀与流体箱的流体入口通过一回流管道连接,第一控制阀在接通回流管道时第一流体通过回流管道回流至流体箱中。通过共用车辆冷却系统的流体泵和第一流体,无需使用空气压缩机便达到提升车轴的目的,使得车辆空间紧凑可靠,降低成本。


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    Title :

    Hydraulic pneumatic suspension system for vehicle


    Additional title:

    一种用于车辆的液压气动悬架系统


    Contributors:
    CHEN FENG (author) / MATTHIAS KRAPORT (author) / FU ZHIQUAN (author) / HU FEI (author)

    Publication date :

    2021-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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